CORD-1008 port vtn synchronizer to new_base

Change-Id: Ib3883dd978dd6ff09cb83380f98c57203bdae346
diff --git a/xos/synchronizer/steps/sync_onos_netcfg.py b/xos/synchronizer/steps/sync_onos_netcfg.py
index 8c157e3..b6f427d 100644
--- a/xos/synchronizer/steps/sync_onos_netcfg.py
+++ b/xos/synchronizer/steps/sync_onos_netcfg.py
@@ -4,9 +4,8 @@
 import sys
 import base64
 import json
-from synchronizers.base.syncstep import SyncStep
-from core.models import Service, Slice, Controller, ControllerSlice, ControllerUser, Node, TenantAttribute, Tag, ModelLink, AddressPool
-from services.vtn.models import VTNService
+from synchronizers.new_base.syncstep import SyncStep
+from synchronizers.new_base.modelaccessor import *
 from xos.logger import Logger, logging
 
 logger = Logger(level=logging.INFO)